tired of crying

I'm so tired of crying over a breakup I'm trying to get over.  I'm tired of talking about it.  I'm tired of analyzing it.  I am just tired.  I know it's not anything I can speed my way through, but it's just so exhausting.  I'll have a good morning or afternoon here and there, then something will trigger the pain.  I want to be back to me again - talking about happy things with my friends, exploring my community, going to the gym 4 days a week, just being content in general.  I'm tired of not having an appetite.  I'm tired of not having good self-esteem and being tormented by wondering WHY this person couldn't love me.  I know I need to give the wondering up.  There is no answer that would make me happy.  I can't pray the serenity prayer enough it seems.  I just want to accept what has happened, so I can learn from it, move on, and be happy again.  It's just so hard.